Konstantin L

Konstantin L

UpstreamUpstream
Founding Engineer @ Upstream (YC S23)
#17777822 followers10 following
>10,000All time
260 KP

About

Building multiplayer email for modern teams. Product-minded engineer, previously at Yandex. Based in Paris.

Badges

Tastemaker
Tastemaker
Veteran
Veteran
Gone streaking
Gone streaking

Maker History

  • Upstream
    UpstreamThe inbox designed for humans and agents
    Jun 2026
    • 🎉
    Joined Product HuntMarch 18th, 2015